KR102048023B1 - Auto sliding door appraratus - Google Patents

Abstract

The present invention relates to a sliding automatic door device that operates a sliding door member with a belt drive unit, and is positioned in the horizontal direction to the door support base member, the roller support rail member for guiding the movement of the sliding door member, connected to the sliding door member Including the support roller member for supporting the load of the sliding door member by moving along the roller support rail member to prevent sagging of the belt member, which is excellent in durability, stable operation for a long time, and low in maintenance cost, It minimizes the loss, and minimizes the loss of power transmission by the belt member to operate smoothly to open and close the door reliably can improve the satisfaction when using.

Description

Sliding automatic door device {AUTO SLIDING DOOR APPRARATUS}

The present invention relates to a sliding automatic door device, and more particularly, to a sliding automatic door device which prevents the belt from sagging and moves the sliding door stably and smoothly in the sliding door that is moved to the belt structure.

In general, the type of door that is installed in the living room, porch and balcony of the building is a sliding door type that is pushed and pulled in the horizontal axis direction.

Since the sliding door does not need a radius of rotation, the operating space for opening and closing the door is unnecessary, and there is an advantage that it can be installed in a large area by moving in a plane.

For example, a sliding door type as described above is preferable for dividing a large living room into a compartment or a space for free passage.

This sliding type door is an automatic door structure that automatically opens and closes the partitioned space by a sensor or the like when the entrance of the building is partitioned into a specific entrance or inside of the building. The trend is widening.

The conventional sliding automatic door device is rotatably positioned on one side of the support panel 1 as shown in FIG. 1 and is spaced apart from the drive pulley 2 and the drive pulley 2 which are rotated by a motor. Both ends of the driven pulley (3), the driving pulley (2) and the driven pulley (3), which are rotatably positioned on the other side, respectively, are wound around the belt (4) It includes a door drive unit including, and the sliding door 5 to the belt 4 by a bracket having a structure for opening and closing the door while moving with the horizontal movement of the belt (4).

However, in the conventional sliding automatic door device, since the sliding door 5 is connected to the belt 4 by a bracket to move with the movement of the belt 4 to open and close the entrance and exit, the sag of the belt may occur when used for a long time. .

Conventional sliding automatic door device has a problem that the maintenance work, such as replacing the belt 4 periodically due to the sagging of the belt 4 during use, has a problem that a lot of maintenance costs due to the periodic maintenance work there was.

In addition, in the conventional sliding automatic door device, when the load of the slide door 5 becomes large, a slip occurs between the driving pulley 2 and the belt 4 so that a loss in power transmission occurs, thereby causing the slide door 5 to fall. There is a problem that the opening and closing operation is not smooth.

An object of the present invention is to provide a sliding automatic door device that is prevented from sagging of the belt is excellent in durability and stable operation for a long time.

In addition, another object of the present invention to provide a sliding automatic door device that can be opened and closed stably to operate the door smoothly by minimizing the loss during power transmission by the belt.

In addition, another object of the present invention to provide a sliding automatic door device that can be easily removed and mounted the sliding door to improve the convenience during installation and maintenance work.

In order to achieve the above object of the present invention, the sliding automatic door device according to the present invention is a door support base member located in the horizontal direction located on the upper side of the doorway, rotatably positioned on one side of the door support base member A first pulley member, a second pulley member rotatably positioned on the other side of the door support base member, a rotating motor part for rotating the first pulley member, and both end sides of the first pulley member and the second pulley A belt member wound around the member and moved by rotation of the first pulley member, a sliding door member connected to the belt member to open and close the door, a door connection member connecting the sliding door member to the belt member, and the door support Roller support rail member which is positioned in the horizontal direction in the base member to guide the movement of the sliding door member, the slice And a support roller member connected to a ding door member and moving along the roller support rail member to support a load of the sliding door member.

In the present invention, the door connecting member is located on the upper side of the belt member is passed in the horizontal direction and the belt coupling portion is provided with a plurality of coupling teeth on the inner side is engaged with the gear teeth of the belt member, the lower side is A door coupling part is detachably coupled to the sliding door member, and the door coupling part may be detachably coupled to the upper side of the sliding door member by bolt coupling.

In the present invention, the support roller member includes a roller body portion, a support roller portion rotatably positioned on the roller body portion and mounted on the roller support rail member, wherein the roller support rail member has a moving space formed in a longitudinal direction. It is a frame structure, and the movement guide opening which is opened in the longitudinal direction in the lower portion is located, the lower surface of the roller body portion protrudes through the movement guide opening coupled to the door engaging projection coupled to the sliding door member, The sliding door member may be provided with a roller coupling portion detachably coupled to the door coupling protrusion.

In the present invention, the door coupling protrusion may include a base protrusion integrally protruding from the lower surface of the roller body portion and a door coupling rod portion detachably coupled to the base protrusion and detachably coupled to the roller coupling portion. have.

In the present invention, a lower end portion of the base protrusion is provided with a fastening groove, and an outer circumferential surface of the door coupling rod part is provided with a bolt portion screwed to the fastening groove so that the door coupling rod part may be screwed to the base protrusion.

In the present invention, the door coupling rod portion may be fastened to a nut portion capable of fixing the position of the door coupling rod portion, and a washer portion may be coupled to be positioned between the nut portion and the base protrusion.

In the present invention, the base protrusion may have a length protruding downwardly from the lower surface portion in a state in which the support roller portion is seated on the upper surface of the lower surface portion.

In the present invention, an end of the door engaging rod portion is located in the locking head protruding to the outer circumferential surface, the roller coupling portion is a base bracket mounted on the upper surface of the sliding door member, both end sides are fixed to the base bracket and the A head insertion space is formed between the base bracket and the locking head may be formed, and a protrusion insertion bracket having a protrusion insertion opening in which the door coupling rod may be inserted at one side of the horizontal direction may be inserted. The hook groove is rotatably coupled to the protrusion inserting bracket and the door coupling rod part is inserted at one side thereof to block the entrance of the protrusion insertion opening to fix the protrusion fixing bracket fixing the position of the door joining rod part. It may include.

In the present invention, the hook groove is opened in the rotational direction so that the protrusion insertion bracket overlaps with the protrusion insertion bracket so that the protrusion insertion bracket is rotated to block the entrance of the protrusion insertion opening when the door coupling rod An insertion part may have a shape capable of pushing the door coupling rod part to the inner end of the protrusion insertion opening.

In the present invention, the hinge shaft is configured to have a clearance that can be spaced apart from the projection insertion bracket and the projection fixing bracket, the stopper portion for limiting the clearance of the projection fixing bracket on the end side is positioned to protrude and the projection At least one side of the lower surface of the insertion bracket and the upper surface of the projection fixing bracket, the interval between the bracket for supporting the position of the projection fixing bracket by opening the gap between the projection insertion bracket and the projection fixing bracket. Support protrusions may be located.

In the present invention, the protrusion fixing bracket may be positioned to protrude to the other side of the protrusion insertion bracket in the horizontal direction, and bent to the upper side or the lower side at the protruding other side of the protrusion insertion bracket may be provided with a support for rotation. .

The present invention has the effect of preventing the sagging of the belt member is excellent in durability, stable operation for a long time, low maintenance cost, and minimizes the loss due to maintenance work.

The present invention can be smoothly operated by minimizing the loss during the transmission of power by the belt member can be opened and closed to the entrance to be stable, there is an effect of improving the satisfaction when using.

In addition, the present invention can be easily removed and mounted the sliding door to improve the convenience during installation work and maintenance work to shorten the working time, there is an effect of improving the work efficiency.

1 is a schematic view showing a conventional sliding automatic door device.
Figure 2 is an exploded perspective view of the sliding automatic door device according to the present invention.
Figure 3 is a front view of the sliding automatic door device according to the present invention.
4 is an enlarged view of a portion A of FIG. 3.
Figure 5 is a view showing an embodiment of the door connecting member in the sliding automatic door apparatus according to the present invention.

The present invention is explained in more detail.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention. Prior to the description of the invention, the terms or words used in the specification and claims described below should not be construed as being limited to the common or dictionary meanings. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

2 is an exploded perspective view of the sliding automatic door device according to the present invention, Figure 3 is a front view of the sliding automatic door device according to the present invention, Figure 4 is an enlarged view of a portion A of FIG.

An embodiment of the sliding automatic door device according to the present invention will be described in detail below with reference to FIGS. 2 to 4.

One embodiment of the sliding automatic door device according to the present invention includes a door support base member 100 located in the horizontal direction located on the upper side of the doorway.

The door support base member 100 is positioned on the upper side of the doorway, and is positioned in the width direction of the doorway, that is, in the horizontal direction of the doorway, to guide the sliding movement of the sliding door member 500.

The door support base member 100 has a belt driving unit having a belt structure for opening and closing the doorway by moving the sliding door member 500 in the horizontal direction.

The door driver is located on the front surface of the door support base member 100, and the front surface of the door support base member 100 refers to the surface on which the door driver is positioned.

The door driver includes a first pulley member 200 rotatably positioned at one side of the door support base member 100 and a second pulley member 300 rotatably positioned at the other side of the door support base member 100. The rotary motor unit 210 for rotating the first pulley member 200, both end sides are wound around the first pulley member 200 and the second pulley member 300 by the rotation of the first pulley member 200. It may include a belt member 400 is moved.

In addition, the door driving unit may include a door operation control unit for controlling the operation of the rotary motor unit 210, the door operation control unit receives the opening and closing operation signal of the entrance by the sensor and the switch, etc., the rotary motor unit 210 Operate to open and close the doorway to the sliding door member 500.

The door operation control unit receives an opening signal by a known automatic door infrared sensor and a known automatic door operating switch to rotate the rotating motor unit 210 forward to open the doorway to the sliding door member 500, and again after a predetermined time. By rotating the rotating motor unit 210 to close the doorway to the sliding door member 500 can be variously modified in a known configuration, it will be noted that further detailed description is omitted.

The belt member 400 is wound around the first pulley member 200 and the second pulley member 300 to transfer the rotation of the first pulley member 200 to the second pulley member 300 and move at the same time to move the sliding door. It will open and close.

The first pulley member 200 and the second pulley member 300 protrude a plurality of first gears spaced apart from the outer circumferential surface, and the belt member 400 has a plurality of second gears engaged with the first gear on the inner surface. As an example, the tooth has a timing belt structure in which the teeth are spaced apart.

That is, the belt member 400 moves the sliding door member 500 to the left and right in the rotational direction of the first pulley member 200 to open and close the doorway.

On the other hand, the sliding door member 500 is connected to the belt member 400 through the door connecting member 600.

The door connection member 600 is coupled to the lower side is coupled to the sliding door member 500, the upper side is coupled to the belt member 400 to connect the sliding door member 500 with the belt member 400, the sliding door member 500 to be moved together with the belt member (400).

The door connecting member 600 has a belt coupling part 610 having a plurality of coupling teeth on the upper side thereof, the belt member 400 being positioned in a horizontal direction and engaged with the second gear of the belt member 400 on the inner side thereof. ) Is positioned, the door coupling portion 620 is detachably coupled to the sliding door member 500 on the lower side.

For example, the door coupling part 620 may be detachably coupled to the upper side of the sliding door member 500 by bolt coupling.

The sliding door member 500 may be mounted to the door coupling part 620 and the bolt coupling structure of the door connection member 600, and may be separated from the door coupling part 620 by releasing the bolt.

The door connection member 600 may further include a door coupling bolt 630 fastened to the sliding door member 500 by passing through the door coupling part 620.

The sliding door member 500 may have a fastening hole having a screw groove formed on an inner circumferential surface thereof so that the door coupling bolt 630 may be fastened, and a separate nut to which the door coupling bolt 630 is fastened may be positioned in the door frame. Can be.

Sliding door member 500 is coupled to the door connecting member 600 by the door coupling bolt 630 to loosen the door coupling bolt 630 to remove the door connecting member 600, that is, simply separated from the belt member 400 Can be.

On the other hand, the door support base member 100 has a roller support rail member 700 for guiding the movement of the sliding door member 500 in the horizontal direction, that is, the longitudinal direction.

The roller support rail member 700 is disposed in the moving direction of the sliding door member 500 and is formed to have a length equal to at least the moving range of the sliding door member 500 to guide the movement of the sliding door member 500. .

A supporting roller member 800 is connected to the sliding door member 500 to support the load of the sliding door member 500 by moving along the roller support rail member 700.

The support roller member 800 includes a roller body 810 and a support roller 820 which is rotatably positioned on the roller body and mounted on the roller support rail member 700.

The roller support rail member 700 is a frame structure in which a moving space 710 is formed in the longitudinal direction, and a movement guide opening 730 opened in the longitudinal direction on the lower surface 720 is positioned.

The roller support rail member 700 is located in the moving space 710 and is positioned on the lower surface portion 720 of the roller support rail member 700 to move in the longitudinal direction of the roller support rail member 700.

In addition, the support roller part 820 includes a first support roller and a second support roller which are respectively raised on both sides of the lower surface part 720 with the movement guide opening part 730 as the center.

In addition, a door coupling protrusion 811 coupled to the sliding door member 500 protrudes from the lower surface of the roller body 810 through the movement guide opening 730.

The sliding door member 500 is provided with a roller coupling portion 510 that is detachably coupled to the door coupling protrusion 811.

The supporting roller member 800 and the roller coupling part 510 are plurally positioned to be spaced apart in the width direction of the sliding door member 500 to support the sliding door more stably.

The sliding door member 500 may be separated from the doorway installed to be detachably coupled to the door connection member 600 and the roller coupling part 510, respectively.

The door coupling protrusion 811 is detachably coupled to the base protrusion 811a and the base protrusion 811a protruding integrally from the lower surface of the roller body 810 and detachably coupled to the roller coupling part 510. It comprises a door engaging bar portion 811b.

The lower end of the base protrusion 811a is provided with a fastening groove, and the outer circumferential surface of the door coupling bar 811b is provided with a bolt that is screwed into the fastening groove, and the door coupling bar 811b is attached to the base protrusion 811a. It is taken as an example to be screwed.

In addition, the nut portion 812 that is capable of fixing the position of the door coupling rod portion 811b is fastened to the bolt portion of the door coupling rod portion 811b, and the washer portion 813 coupled to the bolt portion is nut. It may be located between the portion 812 and the base protrusion 811a.

The washer part 813 is formed between the nut part 812 and the base protrusion 811 a and is sized to cover the entire lower surface of the base protrusion 811 a so that the pressing force of the nut part 812 is applied to the base protrusion 811 a. Evenly transmitted to the entire lower surface of the) can maintain the fastening force of the bolt portion.

The base protrusion 811a has a length that protrudes to the lower portion of the lower surface portion 720 in a state in which the support roller portion 820 is seated on the upper surface of the lower surface portion 720. Is positioned to be spaced apart from the lower surface portion 720 of the roller support rail member 700, and the sliding door member 500 serves as a stopper to maintain a proper distance from the upper surface of the sliding door member 500. And the movement of the sliding door member 500 is prevented by a component located between the roller support rail member 700 and the sliding door member 500 can be stably operated and positioned.

The support roller member 800 supports the load of the sliding door member 500 to prevent sagging of the belt member 400, and slip occurs between the belt member 400 and the belt coupling part 610 during power transmission. This prevents the slide from sliding door member can be operated stably.

Figure 5 is a view showing an embodiment of the door connecting member 600 in the sliding automatic door device according to the present invention, referring to Figure 6 the end of the door engaging rod 811b for the locking protruding to the outer peripheral surface The head 811c is located.

And, the roller coupling portion 510 is a base bracket 511 mounted on the upper surface of the sliding door member 500, both end sides are fixed to the base bracket 511 and the locking head between the base bracket 511 A head insertion space in which the portion 811c can be positioned is formed, and a protrusion insertion bracket having a protrusion insertion opening 512a in which a door coupling rod 811b can be inserted at one side in a horizontal direction ( 512, a ring groove 513a rotatably coupled to the protrusion insertion bracket 512 and into which the door coupling rod 811b is inserted is located at one side to block the opening of the protrusion insertion opening 512a. It may include a protrusion fixing bracket 513 for fixing the position of the door coupling rod 811b.

The ring groove portion 513a is opened toward the rotational direction such that the protrusion insertion bracket 512 overlaps the protrusion insertion bracket 512 so that the protrusion insertion bracket 512 is rotated so that the protrusion insertion opening 512a is opened. When blocking the door engaging bar portion 811b is inserted to have a shape that can push the door engaging rod 811b to the inner end of the protrusion insertion opening 512a to press.

The bracket inserting part 512 has a bracket fixing part fixed to the base bracket 511 at both ends, and is spaced apart from the base bracket 511 between the bracket fixing parts to form a head insertion space, and to one side in the horizontal direction. The protrusion insertion part is provided with an opening 512a for protrusion insertion being opened.

The protrusion fixing bracket 513 is rotated about the hinge shaft 515 provided in the protrusion insertion bracket 512 to block the entrance of the protrusion insertion opening 512a, and the door is inserted into the ring groove 513a. The outer circumferential surface of the coupling rod 811b is fixed to fix the position of the door coupling rod 811b.

In addition, at least one side of the lower surface of the projection insertion bracket 512 and the upper surface of the projection fixing bracket 513 opens a gap between the projection insertion bracket 512 and the projection fixing bracket 513. A bracket gap support protrusion 514 may be positioned to support the position of the protrusion fixing bracket 513.

The hinge shaft 515 is configured to have a clearance that can be spaced apart from the protrusion insertion bracket 512 and the protrusion fixing bracket 513, and a stopper part for limiting the clearance of the protrusion fixing bracket 513 on the end side. 515a is positioned to protrude.

The bracket gap support protrusion 514 is rotated to block the protrusion insertion opening 512a so that the protrusion fixing bracket 513 is positioned when the protrusion fixing bracket 513 overlaps with the protrusion insertion bracket 512. The position of the protrusion fixing bracket 513 is supported by being spaced apart from the insertion bracket 512 to press the protrusion stopper to limit the rotation of the protrusion fixing bracket 513.

In addition, the protrusion fixing bracket 513 is positioned to protrude toward the other side of the protrusion insertion bracket 512 in the horizontal direction, and is bent to the upper side or the lower side on the protruding other side of the protrusion insertion bracket 512 to support the rotation. 513b may be provided.

The rotary support 513b makes it easy for the operator to push the bracket for fixing the protrusion 513 by hand.

That is, insert the door coupling rod 811b into the protrusion insertion opening 512a, but inserts the protrusion between the locking head 811c and the nut 812 in the door coupling rod 811b. Inserted into the opening 512a, the locking head 811c is positioned in the head insertion space to be caught by the protrusion insertion opening 512a, and the protrusion fixing bracket 513 is rotated to open the protrusion insertion portion. By locating the block 512a, the sliding door member 500 can be easily installed by connecting the sliding door member 500 and the support roller member 800 to each other. The nut 812 may be tightened with a tool such as a spanner to firmly engage the sliding door member 500.

At this time, the door coupling rod 811b is pressed between the protrusion fixing bracket 513 and the protrusion inserting bracket 512 while being inserted into the ring groove 513a and the protrusion insertion opening 512a, respectively. Position can be fixed.

In addition, when the sliding door member 500 and the support roller member 800 are coupled to each other, that is, when the sliding door member 500 is removed while the sliding door member 500 is installed, the worker supports the rotating support. By sliding 513b, the protrusion fixing bracket 513 is rotated in the opposite direction to simply open the protrusion insertion opening 512a, and through the opened protrusion insertion opening 512a, the door coupling rod 811b. By separating), the sliding door member 500 can be easily separated from the support roller member 800.

The sliding door member 500 is simply coupled to the door connecting member 600 and the bolt fastening and separated, and is simply coupled by rotating the protrusion fixing bracket 513 of the support roller member 800 and the roller coupling part 510. Easy to install and disassemble, it can greatly reduce the time required for installation and disassembly, and improve work efficiency.

That is, the present invention prevents the sagging of the belt member 400 is excellent in durability, stable operation for a long time, low maintenance costs, and minimizes the loss due to maintenance work.

The present invention is smoothly operated by minimizing the loss during power transmission by the belt member 400 can be opened and closed to the entrance stably improves the satisfaction when using.

In addition, the present invention can be easily removed and mounted the sliding door to improve the convenience during installation work and maintenance work to shorten the working time, improve the work efficiency.

The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention, which is understood to be included in the configuration of the present invention.

1: support panel 2: driving pulley
3: driven pulley 4: belt
5: sliding door 10: door driving unit
100 door support base member 200 first pulley member
210: rotating motor part 300: second pulley member
400: belt member 500: sliding door member
510: roller coupling portion 511: base bracket
512: Bracket for protrusion insertion 512a: Opening portion for protrusion insertion
513: bracket for fixing the projection 513a: ring groove
513b: rotation support 514: bracket gap support protrusion
515: hinge shaft 515a: stopper part
600: door connecting member 610: belt coupling
620: door coupling 630: door coupling bolt
700: roller support rail member 710: moving space
720: lower surface portion 730: movement guide opening portion
800: support roller member 810: roller body portion
811 door engaging projection 811a base protrusion
811b: door coupling rod 811c: locking head
812: nut part 813: washer part
820: support roller

Claims (11)

A door support base member located in a horizontal direction located at an upper side of the doorway;
A first pulley member rotatably positioned at one side of the door support base member;
A second pulley member rotatably positioned on the other side of the door support base member;
A rotating motor part for rotating the first pulley member, a belt member of which both ends are wound around the first pulley member and the second pulley member and moved by rotation of the first pulley member;
A sliding door member connected to the belt member to open and close the door;
A door connecting member connecting the sliding door member to the belt member;
A roller support rail member positioned horizontally on the door support base member to guide the movement of the sliding door member; And
A support roller member connected to the sliding door member and moving along the roller support rail member to support a load of the sliding door member,
The roller support rail member is a frame structure formed with a moving space in the longitudinal direction, the opening portion for opening the movement guide is opened in the longitudinal direction in the lower surface portion,
The lower portion of the support roller member is protruded through the moving guide opening for engaging the door engaging projection coupled to the sliding door member,
The sliding door member is provided with a roller coupling portion detachably coupled to the door coupling protrusion,
The support roller member includes a roller body portion, a support roller portion rotatably positioned on the roller body rail member and mounted on the roller support rail member.
The door coupling protrusion,
A base protrusion integrally protruding from the lower surface of the roller body portion; And
A door coupling rod part detachably coupled to the base protrusion and detachably coupled to the roller coupling part,
At the end of the door coupling rod portion, a locking head protruding to an outer circumferential surface is located,
The roller coupling portion,
A base bracket mounted on an upper surface of the sliding door member;
Both end sides are fixed to the base bracket and a head insertion space is formed between the base bracket and the locking head can be positioned, and a protrusion insertion can be inserted into the door coupling protrusion on one side in the horizontal direction. A protrusion insertion bracket in which the opening part is located;
A rotatable groove rotatably coupled to the protrusion insertion bracket with a hinge axis and positioned at one side thereof so that the door coupling protrusion is inserted into the protrusion insertion block, thereby preventing the entrance of the protrusion insertion opening to fix the door coupling protrusion. Including a fixing bracket,
The hinge shaft is configured to have a clearance that can be spaced apart from the projection insertion bracket and the projection fixing bracket, the stopper portion is positioned protruding on the end side limiting the clearance of the projection fixing bracket,
At least one side of the lower surface of the protrusion insertion bracket and the upper surface of the protrusion fixing bracket to open the gap between the protrusion insertion bracket and the protrusion fixing bracket to support the position of the protrusion fixing bracket. Bracket gap support protrusion is located,
When the bracket gap support protrusion is positioned so that the protrusion fixing bracket overlaps the protrusion insertion bracket to block the inlet of the protrusion insertion opening, the bracket fixing spacer is spaced apart from the protrusion insertion bracket to press toward the supporting roller member. Limit the rotation of the protrusion fixing bracket,
The protrusion fixing bracket is positioned to protrude to the other side of the protrusion insertion bracket in the horizontal direction, and is bent to the upper side or the lower side on the protruding other side of the protrusion insertion bracket so that an operator pushes the protrusion fixing bracket by hand. Sliding automatic door device, characterized in that provided with a rotating support for rotation.
The method according to claim 1,
The door connecting member is positioned on the upper side through which the belt member is passed in the horizontal direction, and a belt engaging portion having a plurality of engaging teeth engaged with the gear teeth of the belt member is located on the inner side, and a sliding door member on the lower side. The door coupling part is detachably coupled,
The door engaging portion is a sliding automatic door device, characterized in that detachably coupled to the upper side of the sliding door member by bolt fastening.
delete delete The method according to claim 1,
The lower end of the base protruding portion is provided with a fastening groove portion, the outer peripheral surface of the door coupling rod portion is provided with a bolt that is screwed to the fastening groove portion is the sliding door door, characterized in that the door coupling rod is screwed to the base protrusion Device.
The method according to claim 5,
The door coupling rod portion is fastened to the nut portion for fixing the position of the door coupling rod portion, the sliding automatic door device, characterized in that coupled to the washer portion is located between the nut portion and the base protrusion.
The method according to claim 1,
And the base protrusion has a length protruding downwardly from the lower surface portion in a state in which the support roller portion is seated on the upper surface of the lower surface portion.
delete The method according to claim 1,
The ring groove portion is opened in the rotational direction such that the protrusion insertion bracket overlaps the protrusion insertion bracket so that the protrusion insertion bracket is rotated to block the entrance of the protrusion insertion opening so that the door coupling rod part is inserted. Sliding automatic door device characterized in that it has a shape capable of pushing the door engaging bar portion to the inner end of the projection insertion opening.
delete delete

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